document.write( "Question 581680: Joe need 3 days to tile a rectangular pool of even depth. How long will it take him working at the same rate to tile a pool twice as long,twice as wide and twice as deep. \n" ); document.write( "
Algebra.Com's Answer #371785 by josmiceli(19441)\"\" \"About 
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Let \"+a\" = length
\n" ); document.write( "Let \"+b+\" = width
\n" ); document.write( "Let \"+c+\" = depth
\n" ); document.write( "The area to be tiled is:
\n" ); document.write( "\"+a%2Ab+\" floor
\n" ); document.write( "\"+2%2Aa%2Ac+\" a wall and opposite wall
\n" ); document.write( "\"+2%2Ab%2Ac+\" the other wall and opposite wall
\n" ); document.write( "If you double each dimension, you get
\n" ); document.write( "\"+2%2Aa%2A2%2Ab+%2B+2%2A2%2Aa%2A2%2Ac++%2B+2%2A2%2Ab%2A2%2Ac+\"
\n" ); document.write( "\"+4%2Aa%2Ab+%2B+4%2A%282%2Aa%2Ac%29+%2B+4%2A%282%2Ab%2Ac%29+\"
\n" ); document.write( "\"+4%2A%28+a%2Ab+%2B+2%2Aa%2Ac+%2B+2%2Ab%2Ac+%29+\"
\n" ); document.write( "This is 4 times the area of the 1st pool, so it will take
\n" ); document.write( "him 4 times as long to tile it, or
\n" ); document.write( "\"3%2A4+=+12+\" days
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